In a statement published on Wednesday, the executive director of the Jamaica Anti-Doping Commission says that no partial sample kits were used in the collection process when Campbell-Brown's sample was collected at a May meet. Carey Brown added there was no permission from the World Anti-Doping Agency to deviate from the rules.

In a report released Tuesday, the Court of Arbitration for Sport said it cleared Campbell-Brown of doping because of "deplorable" flaws in the test collection procedures in Jamaica and possible "environmental contamination" of her urine sample.

The three-time Olympic gold medalist tested positive for a banned diuretic at the May meet. She denied intentionally taking any prohibited substance.